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A 3 μF capacitor is charged to a potential of 300 V and a 2 μF capacitor is charged to a potential of 200 V. The capacitors are then connected in parallel with plates of opposite polarity joined together. What amount of charge will flow when the plates are so connected
  • a)
    600 μC
  • b)
    700 μC
  • c)
    250 μC
  • d)
    1300 μC
Correct answer is option 'A'. Can you explain this answer?
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A 3μF capacitor is charged to a potentialof 300 V and a 2μF capa...
The number 3 is a positive integer that comes after the number 2 and before the number 4. It is an odd number, meaning it is not divisible evenly by 2. In terms of multiplication, 3 times 1 equals 3, 3 times 2 equals 6, 3 times 3 equals 9, and so on. It is also a prime number, as it is only divisible evenly by 1 and itself.
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A 3μF capacitor is charged to a potentialof 300 V and a 2μF capa...
Before connections,
C1 = 3µF, V1 = 300V
Charge on C1,
Q1 = 900μC
C2 = 2µF, V1 = 200V
Charge on C2,
Q2 = 400μC
When the positive terminal of C1 is connected with the negative terminal of C2, common potential of the system is:

Substituting the values, we get
V = 100V
New charge on posiitve plate of C1,
Q'= 3 x 100 = 300µC
So, charge Q1 - Q'1 = 600 µC has flown from the positive plate of the C1 to the negative plate of C2.
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A 3μF capacitor is charged to a potentialof 300 V and a 2μF capacitor is chargedto a potential of 200 V. The capacitors are then connected in parallel with plates of opposite polarity joined together. What amount of charge will flow when the plates are so connecteda)600 μCb)700 μCc)250 μCd)1300 μCCorrect answer is option 'A'. Can you explain this answer?
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